Furnace



S. C. EVANS.

FURNACE, APPLICATION FILED NOV. 2|, I919- Patented Aug. 23, 1921.

gnww tot AAAnAAA C. EVANS, OF NEW CASTLE, PENNSYLVANIQ.

FURNACE.

specification of Letters Patent.

Patented A11 23 1921.

Application filed November 21, 1919. Serial No. 339,639.

T0 at whom it may concern be operated by using the rear doors 10 Be itknown that I, SAMUEL C. EVANS, a which will eliminate much hard laborwhen citizen of the United States, residing at New Castle, in the countyof Lawrence and State of Pennsylvania, have invented new and usefulImprovements in Furnaces, of which the following is a specification.

The object of my present invention is the provision of a furnacedesigned more particularly for use in tin and sheet metal mills, andadapted to afford a mellow heat with a view to giving the plates auniform surface, and this with the consumption of a minimum amount offuel and in such manner as to avert material scrap waste.

My novel furnace is also advantageous in that it takes up but littlespace, and requires but a minimum quantity of brick in its construction;and vto the attainment of the foregoing, the invention consists in theimprovement as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure 1 is a horizontal section of my novel furnace taken on the line1-1 of Fig. 2.

Fig. 2 is a view, partly in front elevation and partly in transversesection 'of the furnace. I i

i Fig. 3 is a longitudinal section on the line 3 of Fig. 2-

L: is a rear elevation of the furnace.

Similar numerais of reference designate corresponding parts in all ofthe views of the drawings.

The major portion of my novel furnace is constructed of refractorymaterial, and among other elements the furnace comprises a grate 1,ire-doors 2 and longitudinal combustion chambers 3 that extendrearwardly in parallel relation from the upper portions of the spaceabove the grate 1. The furnace.

also comprises a hearth chamber 4%, vertically disposed fines forproducts of combustion, and air flues 6, relativeiy arranged asillustrated. auu at 9 and 10 are furnace doors, the doors 10 being atthe rear. In this connection it will be appreciated that the furnace mayAt 7 is a damper controlled uptake,

a platform is provided adjacentto the rear end of the furnace, 1n conunct1on with a conveyer disposed alongside the furnace to carry the tinplate.

It will be manifest from the foregoing that the charging door or doors10 at the rear of my novel furnace constitute important features of myinvention. This will be better appreciated when 1t is stated that mynovel furnace is charged through the rear door or doors l0, and theplatesare,

withdrawn through the door or doors 9. In charging the improved furnacethe operator catches hold of the loose end of the pack and inconsequence the said loose end is farthest from therash fire. InWithdrawing through the door or doors 9 the operator catches hold of thecurled end of the pack. By virtue of this the packs cannot open andscrape the bottom of the chamber 4.

T he longitudinal combustion chambers or hot air lines 3 of my improvedfurnace'assure the ignition of the gases in the smoke thereby affordinga clear flame which of course has tendency to improve the quality of thesh et metal.

Having described my invention, what I claim and desire to secure byLetters-Patent, is: i I 7 In a furnace a hearth or working chamherhaving doors at its front'and rear ends,

below and connected with the said conduct- I ing means at a pointslightly in front of the SAMUEL o. EVANS;

